Mechanical signal.



C. F. SEND ALL.

MECHANICAL SIGNAL, APPLICATJON VFILED rsa.14. 1912. RENEWED IULY a, 1914.

Patented Feb. 22, I916v IIIIIIIIIIIIIIIIIIIIIIIIID'.

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; ATTORNEY UNITED stuns fen thll will;

CHARLES F. SENDALL, 0F BROOKLYN, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, 7

TO LOVELL-MQCONNELL MANUFACTURING COMPANY, A CORPQRA'IIQN OF DELA- WARE.

Specification of Letters Patent.

MECHANICAL SIGNAL.

retested Feb. 22,1916.

application filed February 14;, 1912, Serial No. 677,458. Renewed July 8, 191d. Serial No. 549,833.

To all whom it may concern:

Be it known that KCHARLES'F. SENDALIL, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements inMechanical Signals, of

which the followin is a specification.

This invention relates to signal horns and especially those operated by mechanical means and where a diaphragm is vibrated by means of a rotating wheel operated by the necessary mechanism, the signal horn being soconstructed and the diaphragm arranged so that the mechanism may be housed within the projector to protect it and at the same time economize in space as will be more fully described in the following specification, set forth. in the claims and illustrated in the dr 'awings, wherein,

Figure 1 is a longitudinal vertical sectional view of the signal horn comprising this invention. Fig. 2 is a horizontal sectional view of same.

The projector 5 is preferably rectangular in cross section and has a flared front end 6 to prevent too sudden liberation of the sound waves, as is common in this type of signal ingapparatus. Within the projector is a frame7, slidable lengthwise of the projector, and normally rigidly held against movement. The frame rests upon the one side of the projector, and has arms '7 engaging with the opposite side. The endwise movement is secured by means of anadjustment screw 8 at the front-end of the frame and extending through a standard or lug 9 rigid with the projector. Nuts 10, threaded on the screw engage with opposite sides of the lug to hold the parts rigid in respect to each other. The rear end of the projector is flared and provided with a flange 13 within which fits the diaphragm 12, so as to close the rear end of the projector. The dia phragm carries a suitable wearpicce 11 on its front face against which'the cam of the operating mechanism engages, as will be more fully pointed out hereinafter. By loosening one of the nuts of the screw 8, and tightening the other, the frame which carries the cam ma y be adjusted toward or from the diaphragm, as to secure the desired overlap of cam on wear-piece. In the rear of the diaphragm, I provide a rea wall 15 spaced from the diaphragm prelbrably by an annular gasket 14, so that an air chamber tween the teeth allow the button to move forward again. The shaft 19 also carries a, pinion 23, driven by a gear wheel 24 on the.

shaft 2Q and the latter is rotated means of the pinion 25, driven by the gear wheel 26 on the shaft 21. This shaft 21 carries a handle in the form of a yoke 27 which may be operated by any desired means such as the pressure of the hand or it may be connected by means of a cord or link with a lever near the drivers seat. A pawl 30 is carried by an arm 28 and engages with a ratchet wheel 31 on the shaft 21. The arm 28 is rigid with the shaft 21 and has attached to-it a spring .29 adapted to normally hold the shaft, arm,

and handle in one predetermined position. When the handle is driven in the direction of fire arrow in Fig. 1, it rotates the train of Wheels, multiplying the speed so that the ratchet wheel 22 is rotated w th such rapidity that the car can hardly di tinguish the separate vibrations of the diaphragm and a. continuous tone-may result as longas the yoke continues to move. The signal horn as thus constructed, is adapted to protect its mechanism and store same within the projector and at a point where it will not be interfered with-by the other parts of the automobile while the mechanism occupies so little of the space within the projector horn that the noise is in no way retarded or lessened nor its operation on the resonator interfercd .with. By adjusting the screw 8, the vibration of the diaphragm may be regulated so as to subdue or increasethe vibra tions and noise.

It is obvious that the parts may be otherwise arranged or modified while carried within the projector horn without departing from the essential features above de scribed.

What I claim as new and desire to secure by Letters Patent is,--

1. In a. signal, the combination with a projector of a diaphragm. and Wearpiece at the rear cud. of the projector, of a frame carried within the projector, an adjusting screw at the front end of the frame and carricd by the projector, a ratchet wheel journalcd at the rear end of the frame and adapted to make contact with the Wearpiece, a. pinion on the shaft with the ratchet Wheel, a grar Whccl meshing With the pinion and. having a second. pinion on its shaft, a shaft with a gcar ivhccl meshing with the second pinion, a yoke on the outer ends of the latter shaft, an arm with a pawl on the Shaft, a ritchet wheel oonucctcd with the latter gear Wheel, and a spring adapted to return the arm with the pawl and the yoke to their normal positions.

2. In a signal, the combination with a proicctor, of a diaphragm and Wearpiccc at the rear end of the projector, of a frame carried within the projector, an adjusting device at the front end of the frame, a toothed Wheel iournalcd at the rear end of the frame and adapted to make contact with Wear- ,iiccc, a pinion on the shaft with the toothed wheel, an intermediate shaft carrying a gear wheel meshing with the pinion, a shaft carrying a lever arm, an armwith a pawl on the shaft, a toothed Wheel loosely mounted on the latter shaft, gearing connecting the last named toothed Wheel and intermediate shaft, and a swing adaptedto return the arm with the pawl and the lever arm to their normal positions. V

3. A. warning signal for vehicles, having a diaphragm and a projector extending foru'a *d therefrom, in combination with a solidly supported rotary mechanical agitator in front of the diaphragm, an operating handle, and a multiplying gearing contained in the projector to impart spceded rotation to the agitator.

4. A Warning signal for vehicles, having a diaphragm and a projctor extending forward therefrom, in combination with a frame in the projector having means for adjustment with relation to the diaphragm,

rotary mechanical agitator and a multiplying gearing with one-Way driving means mounted on said frame, and an oscillatory handle outside of the projector and in front of the diaphragm adapted by a partial revolution in one direction to impart encoded rotation to said actuator through said gearing having means for returning it in the opposite direction.

A Warning signal forvehiclcs, having adiaphragm and a projector extending for ward tlzcrafrom, in combination with a sol- 2: y supported rotary mechanical agitator in front of the diaoln gm, an operating lever :xrn, and a multiplying gearing contained in the promoter to impart speeded rota ticn to the agitator.

6. A warning signal for vehicles, having a diaphragm and a projector extending forward therefrom, in combination with a frame in the projector, a rotary mechanical agitator and a multiplying gearing with one-way driving means mounted on said. frame, and an oscillatory lever arm adapted by a partial revolution in one direction. to impart speede'd rotation to said actuator through said gearing and having means for returning it in the opposite direction.

7. A horn or signaling device, comprising a diaphragm presenting a Weanpiece a tu hular casing secured to said diaphragm about the periphery thereof, a train of gears in said casing, shafts substantially parallel to said diaphragm and. carrying said gears,

. a cam rigid with one terminal gear of said train and adapted to engage with said Wearpiecc, a ratchet Wheel rigid with the other terminal gear of said train and loose on its supporting shaft, a spring pressed dog carried by said shaft for engagement With said ratchet Wheel, said last mentioned shaft hav ing its terminal portions projecting out through opposite sides of said casing and a U-shaped bail outside of said casing and having its oppositc ends secured to said last mentioned shaft. the center portion of said bail being movable toward and from the plane of the diaphragm to eflicct'a rotation of said cam and a vibration of said diaphragm.

8. A horn or signaling device comprising a diaphragm, a resonator, a cam rotatable about an axis substantially parallel to said diaphragm, a shaft substantially parallel to said diaphragm and having a ratchet Wheel rotatably mounted thereon, a dog carried by said shaft for engagement With said, ratchet wheel, a train of gears from said ratchet wheel to said cam and a U-shaped bail having its opposite ends secured to opposite ends of said shaft whereby said cam may be rotated to vibrate said. diaphragm upon a swinging of the center portion of said bail in one direction.

9. A horn or signaling device comprising a tubular casing, a diaphragm closing one end thereof, a cam within. said casing and rotatable about an axis substantially parallel to said diaphragm, a shaft substantially parallel to said diaphragm and having a ratchet Wheel loosely mounted thereon, means carried by said shaft for engagement with said ratchet Wheel to rotate the latter upon an oscillation of said shaft in one dir ction, a train of gears from said ratchet Wheel to said cam and a hail having its opposite ends secured to opposite ends of said shaft whereby said cam may he rotated to vibrate said diaphragm upon the swing ing of the center portion of said bail in one direction, and means for bodily adjusting said cam toward and from said diaphragm.

10. A. horn or signaling device, compristrain of gears,

, terminal portion diaphr a casing secured to said the perlphery thereof, a shafts supporting said gears, a cam driven by one terminal gear of said train and adapted to vibrate said diaghragm, pawl and ratchet members carried y one of said shafts, one of said members being connected to the other terminal gear of said train and the other member being secured to said shaft, said shaft having a projecting out through the side of said casing, and a handle outside of said casing and secured to said shaft and having a portion movable toward and from the plane of the diaphragm to eifect a rotation of said cam and a vibration of said agm.

11. A horn or signaling device, ing a diaphragm presenting a wear-piece, a tubular casing secured to said diaphragm about the periphery thereof, a train of gears ing a diaphragm diaphragm about comprisin said casing, shafts substantially parallel to said diaphragm and carrying said gears,

ried by said shaft for engagement with said ratchet Wheel, said last mentioned shaft having a terminal portion projecting out through the side of said casing, and a handle secured to said terminal portion for driving said train of gears and rotating said cam.

. In testimony whereof I afiix my signature in presence of two Witnesses.

V I CHARLES F. SENDALL. I

Witnesses: I 4

' JAMES F. DUHAMEL, THno. H. FRIEND. 

